我正在尝试检查用户是管理员还是标准用户

Question

When a user logs in to the site, I want it to run a check on whether or not they are an admin. If they are an admin I would like to send them to the admin page and if they are a user then send them to the homepage. However I am having a few issues. The errors that have come up are

"Syntax Error, unexpected == (T_IS_EQUAL), expecting ',' or ')'".

I am trying this using xampp. Admin is the row on the database which would store the integers either 1 or 2. 1 being a standard user and 2 being the admin.

if(!isset($_SESSION['admin'] == '1' OR $_SESSION['admin'] == '')){
    header('Location: home.php');
} else if(!isset($_SESSION['admin'] === '2')){
    header('Location: admin.php');
}

I expect that when a standard user logs in to the website that it should redirect them to the homepage, however when an admin logs in then it should redirect them to the admin page.

Answer 1

You are trying to check if a condition isset, but isset (in docs) determine if a variable is declared and is different than NULL

You should check like this:

if (isset($_SESSION['admin'])) {
    if ($_SESSION['admin'] === "2") {
        header('Location: admin.php');
    } else {
        header('Location: home.php');
    }
} else {
    header('Location: home.php');
}

Answer 2

You can do this from Post Login file directly by checking rows of the database and giving appropriate header location . See the below code of mine

if($rows['registrationType'] == 1) //for user
        {
            $_SESSION['user']['id'] = $rows['userId'];//Set Sessions
            header('location: user/index.php');
        }
        elseif($rows['registrationType'] == 2) // for admin
        {
            $_SESSION['admin']['id'] = $rows['userId'];//Set Sessions

            /*Header Location Redirects to that page*/
            header('location: admin/index.php');

        }